Caldera continues his quest to find and determine the meaning of family within the violent times at the end of the Apache Wars. His quest is hampered by the arrival of an unknown half-brother, a Harvard educated tinderfoot with plans for a takeover of his (and Caldera's) father's enormous business empire. While his half-brother ruthlessly carries out a business plan, Caldera faces life and death choices in a war between mining communities, as a "regulator"...